forked from hardcoresushi/DroidFS
40 lines
727 B
Go
40 lines
727 B
Go
|
package contentenc
|
||
|
|
|
||
|
|
import (
|
||
|
|
"log"
|
||
|
|
"sync"
|
||
|
|
)
|
||
|
|
|
||
|
|
// bPool is a byte slice pool
|
||
|
|
type bPool struct {
|
||
|
|
sync.Pool
|
||
|
|
sliceLen int
|
||
|
|
}
|
||
|
|
|
||
|
|
func newBPool(sliceLen int) bPool {
|
||
|
|
return bPool{
|
||
|
|
Pool: sync.Pool{
|
||
|
|
New: func() interface{} { return make([]byte, sliceLen) },
|
||
|
|
},
|
||
|
|
sliceLen: sliceLen,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Put grows the slice "s" to its maximum capacity and puts it into the pool.
|
||
|
|
func (b *bPool) Put(s []byte) {
|
||
|
|
s = s[:cap(s)]
|
||
|
|
if len(s) != b.sliceLen {
|
||
|
|
log.Panicf("wrong len=%d, want=%d", len(s), b.sliceLen)
|
||
|
|
}
|
||
|
|
b.Pool.Put(s)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get returns a byte slice from the pool.
|
||
|
|
func (b *bPool) Get() (s []byte) {
|
||
|
|
s = b.Pool.Get().([]byte)
|
||
|
|
if len(s) != b.sliceLen {
|
||
|
|
log.Panicf("wrong len=%d, want=%d", len(s), b.sliceLen)
|
||
|
|
}
|
||
|
|
return s
|
||
|
|
}
|